Fix usage of EmitBranch in compare-minus-zero-and-branch.

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 986cf833a4e3416ca0c15d018da12101be9166d5..dc6ddf9f7e41595e10b58c033e04fdc4cd958e93 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2249,31 +2249,27 @@ void LCodeGen::DoCmpHoleAndBranch(LCmpHoleAndBranch* instr) {
 void LCodeGen::DoCompareMinusZeroAndBranch(LCompareMinusZeroAndBranch* instr) {
   Representation rep = instr->hydrogen()->value()->representation();
   ASSERT(!rep.IsInteger32());
-  Label if_false;
 
   if (rep.IsDouble()) {
     XMMRegister value = ToDoubleRegister(instr->value());
     XMMRegister xmm_scratch = double_scratch0();
     __ xorps(xmm_scratch, xmm_scratch);
     __ ucomisd(xmm_scratch, value);
-    __ j(not_equal, &if_false);
+    EmitFalseBranch(instr, not_equal);
     __ movmskpd(kScratchRegister, value);
     __ testl(kScratchRegister, Immediate(1));
     EmitBranch(instr, not_zero);
   } else {
     Register value = ToRegister(instr->value());
     Handle<Map> map = masm()->isolate()->factory()->heap_number_map();
-    __ CheckMap(value, map, &if_false, DO_SMI_CHECK);
+    __ CheckMap(value, map, instr->FalseLabel(chunk()), DO_SMI_CHECK);
     __ cmpl(FieldOperand(value, HeapNumber::kExponentOffset),
             Immediate(0x80000000));
-    __ j(not_equal, &if_false);
+    EmitFalseBranch(instr, not_equal);
     __ cmpl(FieldOperand(value, HeapNumber::kMantissaOffset),
             Immediate(0x00000000));
     EmitBranch(instr, equal);
   }
-
-  __ bind(&if_false);
-  EmitFalseBranch(instr, always);
 }